'use strict'
const path = require('path')
const webpack = require('webpack')
const { name, port, title } = require('./package')

function resolve (dir) {
  return path.join(__dirname, dir)
}

let publicPath = '/store'
if (process.env.NODE_ENV === 'production') {
  publicPath = '/store'
}
var url = process.env.HOST_DOMAIN

// All configuration item explanations can be find in https://cli.vuejs.org/config/
module.exports = {
  /**
   * You will need to set publicPath if you plan to deploy your site under a sub path,
   * for example GitHub Pages. If you plan to deploy your site to https://foo.github.io/bar/,
   * then publicPath should be set to "/bar/".
   * In most cases please use '/' !!!
   * Detail: https://cli.vuejs.org/config/#publicpath
   */
  parallel: false,
  productionSourceMap: false,
  publicPath: publicPath,
  outputDir: 'dist/store',
  assetsDir: 'static',
  devServer: {
    port,
    proxy: {
      '/base': {
        ws: false,
        target: url,
      }
    },
    disableHostCheck: true,
    compress: true,
    headers: {
      'Access-Control-Allow-Origin': '*',
    },
  },
  configureWebpack: {
    name: title,
    plugins: [
      new webpack.ProvidePlugin({
        $: 'jquery',
        jQuery: 'jquery',
        'windows.jQuery': 'jquery',
      }),
    ],
    resolve: {
      alias: {
        vue$: 'vue/dist/vue.esm.js',
      },
    },
    output: {
      // 把子应用打包成 umd 库格式
      library: `${name}-[name]`,
      libraryTarget: 'umd',
      jsonpFunction: `webpackJsonp_${name}`,
    },
    externals: {
      "echarts": "echarts"
    }
  },
  chainWebpack (config) {
    config.plugins.delete('preload') // TODO: need test
    config.plugins.delete('prefetch') // TODO: need test
    config.module
      .rule('svg')
      .exclude.add(resolve('src/icons'))
      .end()
    config.module
      .rule('icons')
      .test(/\.svg$/)
      .include.add(resolve('src/icons'))
      .end()
      .use('svg-sprite-loader')
      .loader('svg-sprite-loader')
      .options({
        symbolId: 'icon-[name]'
      })
      .end()
    // set preserveWhitespace
    config.module
      .rule('vue')
      .use('vue-loader')
      .loader('vue-loader')
      .tap((options) => {
        options.compilerOptions.preserveWhitespace = true
        return options
      })
      .end()

    config
      // https://webpack.js.org/configuration/devtool/#development
      .when(process.env.NODE_ENV === 'development', (config) =>
        config.devtool('cheap-source-map')
      )

    config.when(process.env.NODE_ENV !== 'development', (config) => {
      config
        .plugin('ScriptExtHtmlWebpackPlugin')
        .after('html')
        .use('script-ext-html-webpack-plugin', [
          {
            // `runtime` must same as runtimeChunk name. default is `runtime`
            inline: /runtime\..*\.js$/,
          },
        ])
        .end()
      config.optimization.splitChunks({
        chunks: 'all',
        cacheGroups: {
          libs: {
            name: 'chunk-libs',
            test: /[\\/]node_modules[\\/]/,
            priority: 10,
            chunks: 'initial', // only package third parties that are initially dependent
          },
          elementUI: {
            name: 'chunk-elementUI', // split elementUI into a single package
            priority: 20, // the weight needs to be larger than libs and app or it will be packaged into libs or app
            test: /[\\/]node_modules[\\/]_?element-ui(.*)/, // in order to adapt to cnpm
          },
          commons: {
            name: 'chunk-commons',
            test: resolve('src/components'), // can customize your rules
            minChunks: 3, //  minimum common number
            priority: 5,
            reuseExistingChunk: true,
          },
        },
      })
      config.optimization.runtimeChunk('single')
    })
  },
}
